Aquarium air pumps increase your water circulation and surface area for proper gas exchange. Air pumps are used to power aquarium equipment, such as undergravel filters, corner (box) filters, sponge filters and protein skimmers. Plus they create a dynamic look when used with bubbling air stones and action ornaments. Choose a fish tank air pump that's a bit more powerful than you think you need - this way you're covered if you add more tank accessories later.
